1. Institute for Medical Microbiology, Justus-Liebig University, Giessen, Germany.
2. Vascular Biology Center and Medical College of Georgia at Augusta University, Augusta, Georgia, USA.
3. Department of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia, USA.
4. Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.
5. Lungen- und Atmungsstiftung Bern, Bern, Switzerland.
6. Internal Medicine V—Pneumology, Allergology, Respiratory and Environmental Medicine, Faculty of Medicine, Saarland University, Saarbrücken, Germany.
7. Department of Medicine, Medical College of Georgia at Augusta University, Augusta, Georgia, USA.
8. Department of Medicine, Emory School of Medicine, Atlanta, Georgia, USA.